Improved Foot-driving Gear for Bicycles, Tricycles, and other Foot-power Machines.

摘要

11,774. Absalom, J., and Thompson, J. May 16. Treadle mechanism for bicycles, tricycles, and other foot - power machines. Each oscillating lever A carries two toothed quadrants attached at 90 degrees to the lever and opposite to one another, chains L2 and rods L being employed to transmit the motion to a freewheel K upon the roadwheel hub. The lever carries stops G to engage a stop on the bottom-bracket lug.